#15463: Implement crystal morphisms, subcrystals, and virtual crystals
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Reporter: tscrim | Owner: sage-combinat
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-6.8
Component: combinatorics | Resolution:
Keywords: crystals, | Merged in:
morphisms, subcrystals | Reviewers:
Authors: Travis Scrimshaw | Work issues:
Report Upstream: N/A | Commit:
Branch: | aa8a33ebb8f4caf418ae6e097ed881e8ce9df99a
public/combinat/crystals/crystal_morphisms| Stopgaps:
Dependencies: #15462 #15882 |
#16001 |
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Changes (by tscrim):
* status: needs_work => needs_review
* milestone: sage-6.4 => sage-6.8
Comment:
I simplified the classes for the different types of crystal morphisms down
to a single class as Anne and I discussed.
I also implemented a `subtype` method for `CartanType` to simplify the
overall interface so that crystal morphisms does not directly depend on
the index set (instead it is indirectly as part of the Cartan type).
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Ticket URL: <http://trac.sagemath.org/ticket/15463#comment:36>
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